Input validation error in Linux kernel - CVE-2025-21831
Published: March 6, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105432
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21831
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the DECLARE_PCI_FIXUP_SUSPEND() function in arch/x86/pci/fixup.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-21831
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/5ee3dd6e59b834e4d66e8b16fc684749ee40a257
- https://git.kernel.org/stable/c/8852e056e297df1d8635ee7504e780d3184e45d0
- https://git.kernel.org/stable/c/a78dfe50fffe6058afed2bb04c50c2c9a16664ee
- https://git.kernel.org/stable/c/b1049f2d68693c80a576c4578d96774a68df2bad
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.78